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<?php $a = array("one"=>1,"two"=>2,"three"=>3); echo "-----\nPointer\n-----"; foreach($a as &$b) { var_dump( key($a) ); var_dump( current($a) ); } echo "-----\nAfter iteration\n-----"; var_dump( key($a) ); var_dump( current($a) ); echo "-----\nNo pointer\n-----"; foreach($a as $b) { var_dump( key($a) ); var_dump( current($a) ); } echo "-----\nAfter iteration\n-----"; var_dump( key($a) ); var_dump( current($a) );
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
----- Pointer -----string(3) "one" int(1) string(3) "one" int(1) string(3) "one" int(1) ----- After iteration -----string(3) "one" int(1) ----- No pointer -----string(3) "one" int(1) string(3) "one" int(1) string(3) "one" int(1) ----- After iteration -----string(3) "one" int(1)
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 ----- Pointer -----string(3) "one" int(1) string(3) "one" int(1) string(3) "one" int(1) ----- After iteration -----string(3) "one" int(1) ----- No pointer -----string(3) "one" int(1) string(3) "one" int(1) string(3) "one" int(1) ----- After iteration -----string(3) "one" int(1)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
----- Pointer -----string(3) "two" int(2) string(5) "three" int(3) NULL bool(false) ----- After iteration -----NULL bool(false) ----- No pointer -----string(3) "two" int(2) string(3) "two" int(2) string(3) "two" int(2) ----- After iteration -----string(3) "two" int(2)
preferences:
256.66 ms | 402 KiB | 330 Q